Question

{3x+2y=17
{5x-y=11
Método de sustitución

Answer 1

$3x + 2y = 17$

$y = 5x - 11$

$3 x + 2 \times (5x - 11) = 17$

$3x + 10x - 22 = 17$

$13x = 17 + 22$

$x = 39 \div 13$

$x = 3$

$y = 5x - 11$

$y = 5 \times 3 - 11$

$y = 15 - 11$

$y = 4$